In the coming weeks, your child will be doing tons of review of old SPI skills. In fact, they have "learned" everything they are intended to learn in 5th grade math so far. Now we just have to further ingrain these math skills by doing some TCAP Prep. We will be doing various activities using centers, ActivBoard, Elmo projector, computers, and plain ole' pencil & paper. This next week, we will be reviewing the first nine weeks worth of skills. These are the skills we worked on in August, September, and some of October.

These are the skills we will be reviewing:

#1 Reads and writes numbers from millions to millionths (place value)

#2 Compares whole numbers and decimals using <, >, =

#3 Solves addition and subtraction problems involving decimals

#4 Estimates decimal sums or differences (rounding and truncating..a skill most 5th graders struggle with)

#5 Divides two- and three- digit numbers by one- and two-digit numbers

#6 Recognizes the remainder in division in either decimal or fraction form

#7 Selects a reasonable solution to a real-world division problem in which

the remainder must be considered

#8 Identifies missing information and/or too much information in word problems

Please feel free (and please do!) to let your child practice these skills using various math resources, games, or worksheets found through my site (or other means!) Look to your right at 1st 9 weeks skills to review.

Signing off, Mrs. Burger :-)

### Prime Factorization: 3/7/11 to 3/11/11

## Sunday, March 6, 2011

*Students have been given workbooks to practice for TCAP. This workbook is for them to keep. Please make sure they keep up with the book and practice their math by doing a minimum of 2-3 pages a week. These are not used as grades, however, again it is great practice for TCAP.*

We will be working on

**Prime Factorization**this week. Doing a little catch-up!

Some key concepts we will be working on includes

**defining prime numbers, defining composite numbers, identifying prime numbers, identifying composite numbers, making factor trees, and making factor trees using exponents.**

Numbers that are only divisible by 1 and the number itself__Prime Numbers:__**Example:**2, 3, 5, 7, 11; All of these numbers are only divisible by 1 and the number itselfNumbers that are divisible by more than two factors.__Composite Numbers:__Factors are numbers that divide exactly/evenly into a larger number; multiples of a number__Factors:__**Example:**4, 6, 8, 9, 10, 12; All of these numbers have more than two factors.**1x4=4, 2x2=4 / 1x6=6, 2x3=6 / 1x8=8, 2x4=8 / 1x9=9, 3x3=9 / 1x10=10, 2x5=10 / 1x12=12, 2x6=12, 3x4=12**

**Students will be tested on TCAP for prime factorization for numbers up to 50.**

*(Please note: 1 is neither prime nor composite.)*

**Prime numbers:**

**Composite numbers:**- 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50

Interactive Factor Trees Practice

Signing off, Mrs. Burger :-)

Labels:
composite,
divisibility,
divisible,
exponents,
factor,
factor trees,
prime,
prime factorization

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## About Me

- Mrs. Burger
- My name is Mrs. Hanah Burger. This is my 4th year teaching 5th grade math at Blythe-Bower Elementary, and I love what I do. My goal is to make as many math nerds out there to love numbers and change the world with their knowledge! I just finished my Masters, and I hope to one day go back for my EDs. I have two amazing kiddos, Mikaela (6) and Peyton (3), as well as a great hubby, Jonathan. They mean the world to me. :0D